Which of the following is not a primary function of the nephron loop?
A)The nephron loop reabsorbs water from the tubule fluid in its descending limb.
B)In addition to reabsorption, the nephron loop secretes hydrogen ions.
C)By reabsorbing salt from its ascending limb, it makes the tubule fluid hypoosmotic.
D)Reabsorption of salt in the ascending limb also creates and maintains a high osmotic pressure.

Question

Quizplus · Accepted Answer

The primary function of the nephron loop is to create and maintain a concentration gradient in the renal medulla, which is necessary for the production of concentrated urine. The loop accomplishes this by reabsorbing salt in its ascending limb and water in its descending limb. The loop does not secrete hydrogen ions.

Which of the Following Is Not a Primary Function of the Nephron